Fuse holder for portable meters



Dec. 24, 1929.

WITNESSES:

1w, O QYWJ B. G. LA BAR Filed Dec. 8, 192s FUSE HOLDER FOR P6RTABLE METERS INVENTOR Barr 6'. LaBar.

BY W ATTORNEY Patented Dec. 24, 1929 UNITED STATES PATENT OFFICE BERT G. LA BAR, OF TURTLE CREEK, PENNSYLVANIA, ASSIGNOR TO WESTINGHOUSE ELECTRIC & MANUFACTURING COMPANY, A CORPORATION OF PENNSYLVANIA FUSE HOLDERFOR PORTABLE METERS Application filed. December s, 1926. Serial No. 153,261.

or meter box that shall be renewable from the front of the panel or from the outside of the meter box. 7

A further object of my invention is to provide a fuse holder and ejector that shall be operable when a closure member is removed from the fuse holder.

Portable meters have heretofore been protected by fuses, disposed in inaccessible positions within the meter housing thereby necessitating the removal of the housing cover in order to renew them after rupture.

According to my invention I am able to renew the fuse from Without the meter housing, thereby retaining the meter in service and eliminating the danger of damaging the mechanism by removing the housing cover.

In the accompanying drawings,

Fig. 1 is a plan view of my fuse holder; and

Fig. 2 is a vertical sectionalview'thereof taken along the section line II-II of Fig. 1.

My fuse holder comprises,.in general, a closure member 1 having a conducting insert 2 which engages a bushing 3 that protrudes through a panel 4, to which it is secured by diametrically-opposite supporting members 5 and 6. A fuse 7 is disposed within the bushing 3 and is biased against the insert 2 by a plunger 8 and aspring 9 that are con tained within a receptacle 11 that is also attached to the panel 4 by diametrically opposite mounting members 12 and 13. The mem bers 12 and 13 are disposed at ninety degrees to the supporting members 5 and 6 and in spaced relation thereto.

The plunger 8 is biased by the spring 9 into engagement with the lower terminal of the fuse 7 to make an electrical connection with the receptacle 11. The other terminal the insert 2 that, in turn, is conductivelyconnected rto the bushing 3. Thus the fuse 7 is bridging means for the open circuit existing between the bushing 3 and the receptacle-11.

Upon the removal of the closure member 1 the spring pressed plunger 8 acts upon the fuse 7 to eject it from the bushing 3. Upon the renewal of the fuse 7, the plunger 8 is forced downwardly against the spring 9 by reason of the pressure imparted to the fuse 7 as the closure member 1 is threaded onto the bushing 3.

Accordingly, I have provided a mounting for a fuse in a supporting member such as a portable meter housing or apanel board, in which the fuse may be renewed from the front of the supporting member by manipulating a closure member located in front of the supporting member. The fuse is-also ejected from the mounting whenever the closure member is removed.

It is to be understood that various modificatlons may be made 1n the device embodying my invention without departing from the spirit and scope of my invention except as set forth in the, appended claims.

I claim as my invention: 1. A fuse holding device comprising a perforated insulating member, a fuse supporting means mounted on "one side of the insulating member for conductively engaging one of the terminals of a fuse, and a second fuse supporting means independently mounted on the same side of the said insulating member projecting beyond the other side of the insulating member for engaging another terminal of the fuse member.

2. A fuse holding device comprising a perforated insulating member, a receptacle for a fuse mounted on one side of the insulating member for conductively engaging one of the terminals of a fuse, a bushing extending through the perforation in spaced relation to the supporting means and a closure member for the bushing conductively connected thereto and for engaging another terminal of a fuse.

3. The combination witha fuse having a plurality of terminals and a perforated insulating and supporting member, of a fuse hold ing device comprising a bushing extending through the perforation, a closure member for Cir the bushing conductively connected thereto for engaging a terminal of the fuse, and a receptacle for another fuse terminal mounted on the said insulating and supporting mem her in spaced relation to the bushing and comprising a plunger and biasing means to assure contact at the fuse terminals.

4. The combination with a fuse having a plurality of terminals and a perforated insulating and supporting member, ofa fuse holding device comprising a bushing extending through the perforation, a closure member for the bushing conductively connected thereto for engaging a terminal of the fine, and a receptacle for another fuse terminal mounted on the said insulating and supporting member in spaced relation to the bushing and comprising a plunger and biasing means for ejecting the fuse after said closure member has been removed from the bushing.

5. A cartridge fuse-holding device for panel mounting comprising a receptacle for a fuse mounted on a panel for conductively engaging one of the terminals of a fuse, a bushing extending therethrough in spaced relation to the receptacle and a closure member for the bushing conductively connected thereto for engaging another terminal of a fuse.

6 The combination with av cartridge fuse and a panel having a perforation, of a fuse holding device comprising a bushing extend.- ing through the perforation, a closure member for the bushing conductively connected thereto for engaging a terminal of the fuse, and a receptacle for another fuse terminal mounted on the rear of the panel in spaced relation to the bushing and comprising a plunger and biasing means to assure contact with the fuse terminals.

7. The combination with a cartridge fuse and apanel having a perforation, of a fuse holding device comprising a bushing extending therethrough, a closure member for the bushing conductively connected thereto for engaging a terminal of the fuse, and a receptacle for another fuse terminal mounted on the rear of said panel in spaced relation to the bushing and comprising a plunger and biasing means for ejecting the fuse after said closure member has been removed.

8. The combination with a cartridge fuse and a. fuse holding device for panel mouut ing comprising a. bushing having diametrically opposite mounting members at one end and a closure at the other end. of a receptacle having diametrically opposite mounting members disposed in angular relation to the first mentioned mounting members and in spaced relation to. each other, thereby constituting the open portion of a circuit that is bridged by the fuse, the terminals of which are conductively connected to the bushing an d the receptacle 9. The combination with a cartridge fuse, of a panel and afuse holding device for panel mounting comprising a tubular bushing, a closure member thereto, a receptacle of cuplike shape mounted on the rear of the panel in spaced relation to the tubular bushing, and containing a plunger and spring, thereby constituting an open portion of a circuit that is bridged by the fuse, one terminal of which rests on the plunger and spring thereby making electrical contact with the receptacle and biasing another terminal of the fuse into electrical engagement with the closure member.

10. The combination with a cartridge fuse, of a panel and a fuse holding device for panel mounting comprising a tubular bushing, a closure member therefor, a receptacle of cuplike shape containing a plunger and a spring mounted on the rear of the panel in spaced relation to the tubular bushing, thereby constituting an open portion of a circuit that is bridged by the fuse, the terminals of which rest on the plunger and spring thereby making electrical contact with the receptacle and the closure member, whereby the spring ejects the fuse from the bushing when the closure member is removed.

11. The combination with a cartridge fuse, of a panel and a fuse holding device comprising a receptacle mounted on the rear of the panel, a bushing protruding from the front of the panel, and a closure member therefor, whereby the cartridge fuse can be renewed from the front of the panel.

12. The combination With a cartridge fuse, a panel and a fuse holding device, comprising a receptacle mounted on the rear of the panel and having means for supporting one terminal of the fuse, a projecting member on the front of the panel independently mounted on the rear thereof in spaced relation to the said receptacle and a closure menu bertherefor conductively engaging another fuse terminal.

13. The combination with a cartridge fuse of a panel and a fuse holding device comprising a receptacle mounted on the rear of the panel and having means for ejecting the fuse, a bushing protruding from the front of the panel supported on the rear thereof independent of the said receptacle and a closure member therefor whereby its removal permits the ejection of the fuse by the ejecting means.

In testimony whereof, I have hereunto subscribed my name this 3rd day of December, 1926.

BERT G. LA BAR. 

